Reenforced pile shells



Jan. 5, 1.932. M. M. UPSON ET Al.

REENFORCED PILE SHELL Filed May 2, 1929 FIG.2..

Patented Jan. 5, 1932 MAXWELL M. UPSON, 0F ENGLEWOOD, NEW"` ERSEY, ANDHERMAN E. SMITH, OF DOUGLASTON, NEW YORK, ASSIGNOR-S TO )RAYMONDCONCRETE PILE COMPANY, OF NEW YORK, N. Y., A CORPORATION OFl NEWyJ'EIRSIEIY` y nnnnrononn Application filed May 2,

It is sometimes necessary to penetrate a stratum of gravel or hardcutting material in order to reach a substantial bottom. While passingthrough such a stratum the pile shell is liable to be punctured, thuspermitting water and sand to enter the shell, frequently to such adegree as to render it impossible to clean out the water and sand andtherefore necessitating the driving of another pile and adding greatlyto the expense of the job.

For illustrative purposes our invention is shown in connection with awell known type of shell which is spirally corrugated andhas heavy steelwire wound in the corrugations.

strong and rigid shell which under most conditions will withstand thecompression of the earth and maintain a hole after the core or lcollapsible mandrel is withdrawn. As usually made, it is necessary tocorrugate the shell rather deeply in order to hold the wire firmly inposition. This renders the metal ofthe corrugations particularlyvulnerable to abuse during the driving operation, and punctures are veryapt to occur at the corrugations.

This invention contemplates the use of a double metallic shell with anonemetallic waterproof material between the shells. the material beingof such nature as to strengthen and stiffen the structure and betterenable it to resist puncture. One suitable material for such a fillingis concrete, another is asphalt,

. but other similar substances may be used with satisfactory results.

If wire reinforcements are used in the shell as above described, thefilling helps to hold the wire in position and the corrugationstherefore do not need to be as deep as in ordinary practice, or may beentirely dispensed with, and the wires may even bein the form of rings,instead of in a continuous spiral.

Shallow corrugations more easily lpush aside the soil and do not adordready opportunity for the cutting material in the soil to The spiralwire and corrugations form avery ,The tapered outer steel shell 2O iscorru- 'rgated spil-ally as .l at 2v2, and the reinforcing 'wire 24 iswound Vin the shallow corrugation's. Within 4the wires isa plain steelshell 26, the 1 space between the inner and outer shells, un-

rinn snnnns 1929. serial no. 359,789.

engage and puncture the under-'sides of the corrugations. Furthermore,the fillin material being waterproof will prevent eakage into the shelleven if the metal shell be out i or fpun'ctured.

.Further and other objects and advantages will appear from thespecification and claims, and from the accompanying drawings whichVshow, by way of illustrationrwhat is'now considered the preferredembodiment of the invention. i

Fig. lis a view in cross-section of a lower pile shell section madeaccording to the present invention, surmounted by other shell sectionsof usual construction,

Fig. 2 is an enlarged view, Vpartlybroken Laway, of a shell sectionshowing the present invention.

' Fig. Slis a section on the line 3-3 ofliig.v 2.

occupied bythe wires, being filled with lthe nonfmetallic filler 28. Thelarger end of each shell section is left unlined and uncorrugated,

the core then removed and the shell filled with concrete to form thepile. v

In Fig. 1 the lower shell is shown of the above-described constructionbecause it had to pass through the stratum of gravel 30 in order foreacha firm foundation. The upper shell sections, which do not need topenetrate cutting material, are of ordinary design.

It is to be understood that the invention is not limited to theconstruction and embodiment herein specified, but may be used in;

and outer shells of thin material, and a positive spacing means betweensaid shells com- Erising a filler of waterproof material wherey leakageof water through said pile shell is prevented even if said outer shelland said filler are punctured.

2. As an article of manufacture, a permanent pile shell for driving andsubsequent filling, comprising in combination, an outer corrugatedmetallic shell, reinforcing wires in the corrugations, an inner shellwithin said wires and spaced from the outer shell thereby, and awaterproof filler between said inner and outer shells and embedding saidwires.

3. As an article of manufacture, a permanent pile shell for driving andsubsequent lling, comprising in combination, spaced outer and iinnershells, corrugations in one. of said shells, reinforcing wires in thecorrugations, and a non-metallic ller between said inner and outershells, said filler acting to support said wires and reinforce saidstructure.

4:. As an article of manufacture, a perma- 255 nent p ile shell fordriving and subsequent filling, comprising in combination, spaced innerand outer metallic shells, a waterproof filler between said shells, andreinforcing wire rings embedded in said filler and engaging at least oneof said shells.

5. As an article of manufacture, a permanent pile shell structureV fordriving and subsequent illing, comprising an outer corrugated shell ofthin metal, an inner shell of o5 thin metal arranged within the outershell, re-

inforcing wires seated in the corrugations and projecting inwardly tospace the inner shell a substantial distance from the outershell and anon-metallic water roof filling between said shells in which said wiresare embedded.

In testimony whereof we hereto aix our signatures.

MAXWELL M. UPSON. l5 HERMAN R. SMITH.k

